Improvement in steam-radiators



. B. SNOW.

STEAM-RADIATOR.

No 181,99Z, Patented Sept.5,1876.

-N. PETER?, PHOTO-LITHOGRAPNEH. WASHINQTON, D C,

UNI'LL'ED STATES PATENT OFFICE.

WILLIAM B. SNOW, OF BROOKLYN, NEW YORK.

IM PROVEMENT IN STEAM-RADIATORS'.

Specification forming part of Letters Patent N o. l 81,992, dated September 5, 1876 application filed August 16, 1876.

To all whom it may concern:

Be it known that I, WILLIAM B. SNOW, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Joints for Steam-Radiators and othersectional steam structures; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, which forms part oi' this specification.

This invention, while applicable to sectionally-constructed steam-boilers, is more particularly designed to be applied to steam-radiators constructed in hollow sections, arranged side by side, and united at or near their opposite ends by hollow screw-joints or nipples.

The invention consists in a novel mode or means of uniting the sections together,where by construction is economized and a tight joint is secured at or between the several sections.

Figure 1 represents a vertical section of a steam-radiator in the course of being fitted or having its sections united together, and Fig. 2 an end view oi' the same. tional elevation, upon a larger scale, of two adjacent radiator sections, in part, in the course of being united by a hollow taper nipple; and Fig. 4, a longitudinal section of such hollow taper nipple detached.

- A A are the independent hollow sections or uprightsr of the radiator, in communication above and below for the purpose of establishing a circulation through them. Ilhe general contour of these sections may be that oi' a series of rings mounted one upon and in communication with eachother, whereby a very efficient radiating surface is obtained, and a freedom of independent expansion and contraction of the several sections, without breaking or injuriously straining the joints which unite them, is secured. Said sections, however, may be of any other suitable form. The sections are fitted together alternately above and below by means of cylindrical or approximately-straight hollow screw-nipples B, onto which the opposite end of each alternate section is screwed after said nipples have been duly secured or screwed within the adjacent sections. Sockets b on the sides of the sections serve to give a bearing or hold for the screw-nipples, and to form a joint when the Fig. 3 is a sec`- the opposite ends of the sections, serve a similar purpose, but in connection with a differentconstruction of screw-nipples, as hereinafter described. The screw-nipples B may have either right or left handed screw-threads on them, but they are not designed to be used as independent right and left hand screw-connections, that, being rotated, draw the sections together against surfaces or projections on said connections, but, on the contrary, the adjacent ends of the sockets b of the sections A are brought close up to each other by the screwing of each succeeding section onto the nipple B of the preceding one, such mode of connection being alternately made above and below, as regards the several sections. This secures a tight joint, as well as a cheap one, and the joints at the other ends of the sections are made equally secure, and are very eilciently and economically constructed. Thus the sections A are connected with each other alternately above and below, at the junction of the sockets b', during the building up of the radiator, or after the sections have been united with each other, as hereinbefore described, by means of tapering hollow screw-nipples (l, of a less diameter than the nipples B, so as to readily pass through the latter or through the sockets b, which receive the nipples B. These tapering nipples C are made to fit correspondingly-tapering screw-threads cut in the interior oi' the sockets b', so that, when screwed to their places, they hold the adjacent sockets b closely together. The interior of the sock ets b are rst roamed out to the required taper and then cut by a screw-tap introduced.

through the other sockets b, which are of a sufficiently larger interior diameter to admit of this, as also to admit of theinsertion through them ofthe tapering nipples (l. The arrangement of the tapering nipples and the tapering screw-threaded holes which they t may either be all in the same direction or in reverse directions, and their screw-threads be either right or left handed, also said nipples be entered either alternately or otherwise above and below from opposite ends of the radiator.

The nipples C it isprefer'red to make slightly free in their middle, or, in other words, ot' a slightly concave form, in direction of their length, as shown in Figs. 3 and 4, so that when screwed to their places, they willl becom e' pressed at their opposite e11d's,lwhereby a closer joint is obtained. Various devices may be used for screwing these nipples to their places, and their ends or interior surfaces be specially constructed to provide for the ready manipulation ofthem. y Y' I claim- The hollow sections Av A, united ator near their opposite ends alternately and respect-Y ively by means of cylindrical or approximatelystraight screw-nipples Bv andtapering screw nipplesO, of a less diameter than the interior of the sockets which receive the nipples B, substantially as and for the purposes herein set forth.

' WM. B. SNOW.

Witnesses:

CEAS. Trios GLOVER, E. J. BURNHAM. 

